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<pre><span class="sourceLineNo">001</span>package org.nashua.tt151.libraries.parsers;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span><a name="line.3"></a>
<span class="sourceLineNo">004</span>/**<a name="line.4"></a>
<span class="sourceLineNo">005</span> * A class containing methods for converting doubles and ints to adhere to the<a name="line.5"></a>
<span class="sourceLineNo">006</span> * protocol. The class can convert doubles and integers to message-format and <a name="line.6"></a>
<span class="sourceLineNo">007</span> * contains wrappers for safely parsing strings<a name="line.7"></a>
<span class="sourceLineNo">008</span> * @author Brennan<a name="line.8"></a>
<span class="sourceLineNo">009</span> * @version 1.1<a name="line.9"></a>
<span class="sourceLineNo">010</span> */<a name="line.10"></a>
<span class="sourceLineNo">011</span>public final class ValueParser {<a name="line.11"></a>
<span class="sourceLineNo">012</span>    <a name="line.12"></a>
<span class="sourceLineNo">013</span>    //Prevent Instantiation<a name="line.13"></a>
<span class="sourceLineNo">014</span>    private ValueParser() { }<a name="line.14"></a>
<span class="sourceLineNo">015</span>    <a name="line.15"></a>
<span class="sourceLineNo">016</span>    /**<a name="line.16"></a>
<span class="sourceLineNo">017</span>     * Clamps an integer and converts it to a string<a name="line.17"></a>
<span class="sourceLineNo">018</span>     * @param num Integer to convert<a name="line.18"></a>
<span class="sourceLineNo">019</span>     * @param min Minimum the number can be<a name="line.19"></a>
<span class="sourceLineNo">020</span>     * @param max Maximum the number can be<a name="line.20"></a>
<span class="sourceLineNo">021</span>     * @return A string representing the number<a name="line.21"></a>
<span class="sourceLineNo">022</span>     */<a name="line.22"></a>
<span class="sourceLineNo">023</span>    public static String Convert(int num, int min, int max) {<a name="line.23"></a>
<span class="sourceLineNo">024</span>        //Clamp<a name="line.24"></a>
<span class="sourceLineNo">025</span>        if (num &gt; max) { num = max; }<a name="line.25"></a>
<span class="sourceLineNo">026</span>        if (num &lt; min) { num = min; }<a name="line.26"></a>
<span class="sourceLineNo">027</span>        return Integer.toString(num);<a name="line.27"></a>
<span class="sourceLineNo">028</span>    }<a name="line.28"></a>
<span class="sourceLineNo">029</span>    <a name="line.29"></a>
<span class="sourceLineNo">030</span>    /**<a name="line.30"></a>
<span class="sourceLineNo">031</span>     * Clamps a double, truncates it and converts it to a string<a name="line.31"></a>
<span class="sourceLineNo">032</span>     * @param num Double to convert<a name="line.32"></a>
<span class="sourceLineNo">033</span>     * @param min Minimum to clamp<a name="line.33"></a>
<span class="sourceLineNo">034</span>     * @param max Maximum to clamp<a name="line.34"></a>
<span class="sourceLineNo">035</span>     * @param places Number of decimal places (rounded)<a name="line.35"></a>
<span class="sourceLineNo">036</span>     * @return <a name="line.36"></a>
<span class="sourceLineNo">037</span>     */<a name="line.37"></a>
<span class="sourceLineNo">038</span>    public static String Convert(double num, double min, double max, int places) {<a name="line.38"></a>
<span class="sourceLineNo">039</span>        //Clamping<a name="line.39"></a>
<span class="sourceLineNo">040</span>        if (num &gt; max) { num = max; }<a name="line.40"></a>
<span class="sourceLineNo">041</span>        if (num &lt; min) { num = min; }<a name="line.41"></a>
<span class="sourceLineNo">042</span>        //Truncating<a name="line.42"></a>
<span class="sourceLineNo">043</span>        //BigDecimal bd = new BigDecimal(num);<a name="line.43"></a>
<span class="sourceLineNo">044</span>        //bd = bd.setScale(places, BigDecimal.ROUND_HALF_UP);<a name="line.44"></a>
<span class="sourceLineNo">045</span>        //return bd.doubleValue() + "";<a name="line.45"></a>
<span class="sourceLineNo">046</span>        return "" + num;<a name="line.46"></a>
<span class="sourceLineNo">047</span>    }<a name="line.47"></a>
<span class="sourceLineNo">048</span>    <a name="line.48"></a>
<span class="sourceLineNo">049</span>    /**<a name="line.49"></a>
<span class="sourceLineNo">050</span>     * Safely parses a string to an integer.<a name="line.50"></a>
<span class="sourceLineNo">051</span>     * @param val String representing an integer<a name="line.51"></a>
<span class="sourceLineNo">052</span>     * @return An integer representing the string, -1 is returned if the string cannot be parsed<a name="line.52"></a>
<span class="sourceLineNo">053</span>     */<a name="line.53"></a>
<span class="sourceLineNo">054</span>    public static int ParseInt(String val) {<a name="line.54"></a>
<span class="sourceLineNo">055</span>        int num;<a name="line.55"></a>
<span class="sourceLineNo">056</span>        <a name="line.56"></a>
<span class="sourceLineNo">057</span>        try {<a name="line.57"></a>
<span class="sourceLineNo">058</span>            num = Integer.parseInt(val);<a name="line.58"></a>
<span class="sourceLineNo">059</span>        } catch (NumberFormatException ex) {<a name="line.59"></a>
<span class="sourceLineNo">060</span>            System.out.println(ex.toString());<a name="line.60"></a>
<span class="sourceLineNo">061</span>            num = -1;<a name="line.61"></a>
<span class="sourceLineNo">062</span>        }<a name="line.62"></a>
<span class="sourceLineNo">063</span>        <a name="line.63"></a>
<span class="sourceLineNo">064</span>        return num;<a name="line.64"></a>
<span class="sourceLineNo">065</span>    }<a name="line.65"></a>
<span class="sourceLineNo">066</span>    <a name="line.66"></a>
<span class="sourceLineNo">067</span>    /**<a name="line.67"></a>
<span class="sourceLineNo">068</span>     * Safely parses a string to a double.<a name="line.68"></a>
<span class="sourceLineNo">069</span>     * @param val String to parse<a name="line.69"></a>
<span class="sourceLineNo">070</span>     * @return A double best represented by the string, Double.NaN is returned upon error<a name="line.70"></a>
<span class="sourceLineNo">071</span>     */<a name="line.71"></a>
<span class="sourceLineNo">072</span>    public static double ParseDouble(String val) {<a name="line.72"></a>
<span class="sourceLineNo">073</span>        double d;<a name="line.73"></a>
<span class="sourceLineNo">074</span>        <a name="line.74"></a>
<span class="sourceLineNo">075</span>        try {<a name="line.75"></a>
<span class="sourceLineNo">076</span>            d = Double.parseDouble(val);<a name="line.76"></a>
<span class="sourceLineNo">077</span>        } catch (NumberFormatException ex) {<a name="line.77"></a>
<span class="sourceLineNo">078</span>            System.out.println(ex.toString());<a name="line.78"></a>
<span class="sourceLineNo">079</span>            d = Double.NaN;<a name="line.79"></a>
<span class="sourceLineNo">080</span>        }<a name="line.80"></a>
<span class="sourceLineNo">081</span>        <a name="line.81"></a>
<span class="sourceLineNo">082</span>        return d;<a name="line.82"></a>
<span class="sourceLineNo">083</span>    }<a name="line.83"></a>
<span class="sourceLineNo">084</span><a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span>}<a name="line.86"></a>




























































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